We have a large MySQL database currently running on a CentOS 3.x
server with an external SCSI RAID device. This is currently an ext2
filesystem because it was migrated once previously from an even older
RedHat system. We need to add storage capacity to this database and
prepare for additional fu
Bart Schaefer wrote:
We have a large MySQL database currently running on a CentOS 3.x
server with an external SCSI RAID device. This is currently an ext2
filesystem because it was migrated once previously from an even older
RedHat system.
umount /dev/sdb1
tunefs -j /dev/sdb1
vi /etc/fstab(
Bart Schaefer wrote:
> We have a large MySQL database currently running on a CentOS 3.x
> server with an external SCSI RAID device. This is currently an ext2
> filesystem because it was migrated once previously from an even older
> RedHat system. We need to add storage capacity to this database a
On 7/6/07, John R Pierce <[EMAIL PROTECTED]> wrote:
umount /dev/sdb1
tunefs -j /dev/sdb1
vi /etc/fstab(and, change ext2 to ext3 on the mount line for this
filesystem)
mount /dev/sdb1
and voila, its EXT3 now, with journalling.
Thanks, John, but is that really the whole answer? Once it's
Bart Schaefer wrote:
Thanks, John, but is that really the whole answer? Once it's ext3 it
can be put into a volume group with no further ado?
I would think that (particularly with a striped LVM such as Johnny
mentioned) there has to be something else invovled.
the file system and the volume m
Bart Schaefer wrote:
> On 7/6/07, John R Pierce <[EMAIL PROTECTED]> wrote:
>>
>> umount /dev/sdb1
>> tunefs -j /dev/sdb1
>> vi /etc/fstab(and, change ext2 to ext3 on the mount line for this
>> filesystem)
>> mount /dev/sdb1
>>
>>
>> and voila, its EXT3 now, with journalling.
>
> Thanks, John,
On 7/8/07, Bart Schaefer <[EMAIL PROTECTED]> wrote:
On 7/6/07, John R Pierce <[EMAIL PROTECTED]> wrote:
>
> and voila, its EXT3 now, with journalling.
Thanks, John, but is that really the whole answer? Once it's ext3 it
can be put into a volume group with no further ado?
I should have read th
On 7/7/07, Johnny Hughes <[EMAIL PROTECTED]> wrote:
Bart Schaefer wrote:
> - What kind of performance can we expect from an LVM group as compared
> to mounting the RAID array directly?
OK, the answer to this question is ...
RAID and LVM can be used together, or individually.
Thanks for confir
Bart Schaefer wrote:
> On 7/7/07, Johnny Hughes <[EMAIL PROTECTED]> wrote:
>> Bart Schaefer wrote:
>> > - What kind of performance can we expect from an LVM group as compared
>> > to mounting the RAID array directly?
>>
>> OK, the answer to this question is ...
>>
>> RAID and LVM can be used togeth
On 7/8/07, Johnny Hughes <[EMAIL PROTECTED]> wrote:
Well ... if you are using hardware RAID, then striping LVM will likely
not give you any benefit speed wise. (Unless multiple controllers are
used and read/write can be done in parallel).
The speed benefit happens if LVM can stripe the sectors
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